142361121211 has 4 divisors (see below), whose sum is σ = 144163160800. Its totient is φ = 140559081624.

The previous prime is 142361121179. The next prime is 142361121233. The reversal of 142361121211 is 112121163241.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 112121163241 = 59 ⋅1900358699.

It is a cyclic number.

It is not a de Polignac number, because 142361121211 - 2⁵ = 142361121179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142361121611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 901019676 + ... + 901019833.

It is an arithmetic number, because the mean of its divisors is an integer number (36040790200).

Almost surely, 2^142361121211 is an apocalyptic number.

142361121211 is a deficient number, since it is larger than the sum of its proper divisors (1802039589).

142361121211 is an equidigital number, since it uses as much as digits as its factorization.

142361121211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1802039588.

The product of its digits is 576, while the sum is 25.

Adding to 142361121211 its reverse (112121163241), we get a palindrome (254482284452).

The spelling of 142361121211 in words is "one hundred forty-two billion, three hundred sixty-one million, one hundred twenty-one thousand, two hundred eleven".